diff --git a/shiny-income-share/requirements.txt b/shiny-income-share/requirements.txt
index e66d0c4..5d6e0db 100644
--- a/shiny-income-share/requirements.txt
+++ b/shiny-income-share/requirements.txt
@@ -6,3 +6,4 @@ vega
 altair
 pandas
 six
+python-multipart>=0.0.18 # not directly required, pinned by Snyk to avoid a vulnerability